课后提升练(十二) Section Ⅳ Writing（Word练习）-【优化指导】2022-2023学年新教材高中英语选择性必修第四册（人教版2019）

品牌书店·知名教辅·正版资源 学科网书城 趣身边的互联网+教辅专家 bxxkcom t 课后提升练(十二)SectionⅣWriting [对应学生用书P_m] I。阅读理解 (2022黑龙江哈尔滨高二阶段练习)Turtleshave an unfortunate habit of eating plastic objects floating in the sea.These then cannot be digested，and may utimately kill them It is widely assumed that this fondness for plastics is a matter of mistaken identity Floating plastic bags，for instance，look simiar to jellyfish(水母)，which many types of turtles love to eat Yet lots of plastic objects that end up inside turtles have no similarity to jellyfish Joseph Pfaller of the University of Florida therefore suspects that the smell of marine microorganisms(海洋微生物) which grow oil floating plasticobjects fools turtles into feeding Researchers at the University of Califonia noticed that certain chemicals，which are released into the air by foating plastics，are those which many seabirds snif(嗅)to track down food。 These chemicals mark good places to limit because they indicate plenty of the algae(海藻)and bacteria.The researchers also found that birds which pursue their food in this way are five or sx times more likely to eatplastic than those which do not Since turtles are known to break the surface and sniff the air when finding the way to their feeding areas，DrPfaller indicated that they are followng these same chemicals，and are likewise fooled into thinking thatfloating plasticobjects are edible To test that idea，he and his colleagues set up an experiment They arranged for15turtles， each around five months old，to be exposed in random order，to four smells the vapor from deionised water(去离子水)，thesmellof turtle-feeding meals，the smell of a clean plastic bottle； and the smell of a bottle that had been keptin the ocean for five weeks to allow algae and bacteria to grow onit Two of the smells—the smell of meals and that of five-week-old bottles proved far more attractive to the animals than the others。 On the face of it，the turtles were responding to the smell of old bottles as if it were the smell of food.Actually，i